US5435532A - Elastic suspension for attaching dynamically stressed function parts - Google Patents

Elastic suspension for attaching dynamically stressed function parts Download PDF

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Publication number
US5435532A
US5435532A US08/254,436 US25443694A US5435532A US 5435532 A US5435532 A US 5435532A US 25443694 A US25443694 A US 25443694A US 5435532 A US5435532 A US 5435532A
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United States
Prior art keywords
retaining clip
elastic
links
base plate
elasticity
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Expired - Lifetime
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US08/254,436
Inventor
Erich Ihle
Bernhard Lindenmayer
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CQLT SaarGummi Technologies SARL
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Saar Gummiwerk GmbH
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Priority to US08/254,436 priority Critical patent/US5435532A/en
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Publication of US5435532A publication Critical patent/US5435532A/en
Assigned to SAGUMMEX GMBH reassignment SAGUMMEX GMBH CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: SAARGUMMI GMBH
Assigned to SAARGUMMI GMBH reassignment SAARGUMMI GMBH CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: SAAR-GUMMIWERK GMBH
Assigned to SAARGUMMI TECHNOLOGIES S.A.R.L. reassignment SAARGUMMI TECHNOLOGIES S.A.R.L. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SAGUMMEX GMBH
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K13/00—Arrangement in connection with combustion air intake or gas exhaust of propulsion units
    • B60K13/04—Arrangement in connection with combustion air intake or gas exhaust of propulsion units concerning exhaust
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00—Springs
    • F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
    • F16F1/38—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers with a sleeve of elastic material between a rigid outer sleeve and a rigid inner sleeve or pin, i.e. bushing-type
    • F16F1/387—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers with a sleeve of elastic material between a rigid outer sleeve and a rigid inner sleeve or pin, i.e. bushing-type comprising means for modifying the rigidity in particular directions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00—Springs
    • F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
    • F16F1/42—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers characterised by the mode of stressing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F3/00—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic
    • F16F3/08—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of a material having high internal friction, e.g. rubber
    • F16F3/10—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of a material having high internal friction, e.g. rubber combined with springs made of steel or other material having low internal friction
    • F16F3/12—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of a material having high internal friction, e.g. rubber combined with springs made of steel or other material having low internal friction the steel spring being in contact with the rubber spring

Definitions

  • the invention relates to an elastic suspension for attaching dynamically stressed function parts, consisting of a metal retaining clip attached to a base plate, and a receptacle case that is positioned by way of links of a rubber-elastic material in a swinging manner within a section formed by base plate and retaining clip.
  • Such elastic suspensions are known e.g. from DE-C-34 54 491. They are used in automobile engineering for positioning exhaust systems and catalyzers.
  • the suspension itself is attached rigidly with its base plate to the vehicle bottom, while the coupling of the exhaust pipe or catalyzer is realized via suitable connection elements, such as bolts or screws, that are positioned in the receptacle case.
  • suitable connection elements such as bolts or screws.
  • the dynamic stresses from the connected function part acting on the receptacle case are absorbed by the rubber-elastic links that carry the receptacle case.
  • the retaining clip that consists of rigid metal band material acts as a so-called loss protector, in order to prevent a falling of the connected function part in the case of link breaks.
  • the links In order to permit the necessary deformation paths, the links must be designed sufficiently long.
  • the high tensile and pressure stresses that occur due to the dynamic stresses also require very thick link diameters. This results in relatively large overall dimensions for the suspension.
  • the high dynamic stresses in connection with high thermal stress also require use of a high-quality, expensive material, such as silicon caoutchouc.
  • the invention is based on the task of improving an elastic suspension of the initially mentioned type in such a way that smaller dimensions and lower weight are achieved without adversely affecting functionality and life span.
  • the retaining clip consists of an elastic metal band material that permits a level deformation of the retaining clip.
  • the retaining clip of the elastic matal band e.g. a spring steel band
  • the deformation in the horizontal axis i.e. the axis that is parallel to the base plate, in which the largest possible displacement paths are desired, may then be adapted to the respective requirements by a suitable selection of elasticity and thickness of the metal band, as well as the starting geometry of the retaining clip in accordance with the elasticity and geometry of the rubber-elastic links.
  • the elastic construction of the retaining clip according to the invention significantly reduces the displacement paths that must be absorbed by the rubber-elastic links.
  • the links thus may be designed shorter, so that the overall dimensions of the suspension can be reduced.
  • elastically and geometry of the retaining clip are designed in such a way that up to 90%, preferably 50-70% of the displacement path of the receptacle cases are absorbed by the elastic retaining clip.
  • the local extensions of the rubber-elastic links can be reduced to extension values to below 50%. Because the tensile and pressure stresses that must be absorbed are correspondingly reduced, it is now possible, even in the case of high temperatures, to use in place of an expensive material, such as silicon caoutchouc, a much cheaper link material, such as HPDM.
  • Elastically and starting geometry of the retaining clip also may also be adapted to the elasticity and starting geometry of the rubber-elastic links in such a way that the swinging path required in the same plane, but at any angle to the base plate, is also partially absorbed by a level deformation of the retaining clip.
  • FIG. 1 shows an elastic suspension according to the invention unstressed.
  • FIG. 2 shows an elastic suspension according to the invention, under horizontal stress.
  • An elastic suspension 1 consists of a base plate 3 with a retaining clip 2 that is attached to the base plate 3.
  • Base plate 3 and retaining clip 2 enclose a section that is, in the shown example, essentially rectangular or trapeze-shaped, and in whose symmetry plane a receptacle case 5 is positioned in a swinging manner by way of links 4 of a rubber-elastic material that are connected to the base plate 3 or the retaining clip 2.
  • the receptacle case 5 is used to connect a dynamically stressed function part.
  • Base plate 3, retaining clip 2, and receptacle case 5 consist of metal. To protect against corrosion, they may be coated with the same material that is used to make the links 4.
  • the retaining clip is made from elastic metal band material, e.g. spring steel band, so that it absorbs an essential part of the displacement path of the receptacle case 5 during dynamic stressing.
  • FIG. 1 shows unstressed suspension 1 with symmetric position of the receptacle case 5 with equal lateral distances b to the retaining clip 2.
  • FIG. 2 in contrast shows the suspension with horizontal displacement a of the receptacle case 2, which causes both the elastic retaining clip 2 and the rubber elastic links 4 to be displaced or deformed.
  • the left, lateral distance d1 of receptacle case 5 to the retaining clip 2 is greater (d1>b-a), and the right, lateral distance d2 is smaller (d2 ⁇ b+a) than would be the case with a suspension 1 with rigid retaining clip 2.
  • the stress on the links 4 is reduced by this difference.

Abstract

The invention relates to an elastic suspension for attaching dynamically stressed function parts, consisting of a metal retaining clip attached to a base plate, and a receptacle case that is positioned by way of links of a rubber-elastic material in a swinging manner within a section formed by the base plate and the retaining clip. The retaining clip consists of an elastic metal band that permits a level deformation of the retaining clip. The retaining clip of the elastic metal band no longer functions exclusively as a loss protector, but rather absorbs an essential part of the dynamic stresses itself. The deformation in the horizontal axis, i.e. the axis that is parallel to the base plate, is adaptable to the respective requirements by a suitable selection of elasticity and thickness of the metal band, as well as the starting geometry of the retaining clip in accordance with the elasticity and geometry of the rubber-elastic links, which significantly reduces the displacement paths that must be absorbed by the rubber-elastic links. The links thus may be designed shorter, so that the overall dimensions of the suspension can be reduced. The elasticity and geometry of the retaining clip are designed in such a way that up to 90% of the displacement path of the receptacle cases are absorbed by the elastic retaining clip. Because the tensile and pressure stresses to be absorbed are correspondingly reduced, the expensive silicon caoutchouc can be replaced with cheaper material such as HPMD.

Description

This application is a continuation of application Ser. No. 08/041,988 filed Apr. 2, 1993, now abandoned.
The invention relates to an elastic suspension for attaching dynamically stressed function parts, consisting of a metal retaining clip attached to a base plate, and a receptacle case that is positioned by way of links of a rubber-elastic material in a swinging manner within a section formed by base plate and retaining clip.
Such elastic suspensions are known e.g. from DE-C-34 54 491. They are used in automobile engineering for positioning exhaust systems and catalyzers. The suspension itself is attached rigidly with its base plate to the vehicle bottom, while the coupling of the exhaust pipe or catalyzer is realized via suitable connection elements, such as bolts or screws, that are positioned in the receptacle case. The dynamic stresses from the connected function part acting on the receptacle case are absorbed by the rubber-elastic links that carry the receptacle case. The retaining clip that consists of rigid metal band material acts as a so-called loss protector, in order to prevent a falling of the connected function part in the case of link breaks.
In order to permit the necessary deformation paths, the links must be designed sufficiently long. The high tensile and pressure stresses that occur due to the dynamic stresses also require very thick link diameters. This results in relatively large overall dimensions for the suspension. The high dynamic stresses in connection with high thermal stress also require use of a high-quality, expensive material, such as silicon caoutchouc.
The invention is based on the task of improving an elastic suspension of the initially mentioned type in such a way that smaller dimensions and lower weight are achieved without adversely affecting functionality and life span.
According to the invention, this task is solved in that the retaining clip consists of an elastic metal band material that permits a level deformation of the retaining clip.
The retaining clip of the elastic matal band, e.g. a spring steel band, thus no longer functions exclusively as a so-called loss protector, but rather absorbs an essential part of the dynamic stresses itself now. The deformation in the horizontal axis, i.e. the axis that is parallel to the base plate, in which the largest possible displacement paths are desired, may then be adapted to the respective requirements by a suitable selection of elasticity and thickness of the metal band, as well as the starting geometry of the retaining clip in accordance with the elasticity and geometry of the rubber-elastic links.
The elastic construction of the retaining clip according to the invention significantly reduces the displacement paths that must be absorbed by the rubber-elastic links. The links thus may be designed shorter, so that the overall dimensions of the suspension can be reduced.
According to another characteristic of the invention, elastically and geometry of the retaining clip are designed in such a way that up to 90%, preferably 50-70% of the displacement path of the receptacle cases are absorbed by the elastic retaining clip. The local extensions of the rubber-elastic links can be reduced to extension values to below 50%. Because the tensile and pressure stresses that must be absorbed are correspondingly reduced, it is now possible, even in the case of high temperatures, to use in place of an expensive material, such as silicon caoutchouc, a much cheaper link material, such as HPDM.
Elastically and starting geometry of the retaining clip also may also be adapted to the elasticity and starting geometry of the rubber-elastic links in such a way that the swinging path required in the same plane, but at any angle to the base plate, is also partially absorbed by a level deformation of the retaining clip.
The invention is described in more detail below, using the embodiment illustrated in FIGS. 1 to 2.
FIG. 1 shows an elastic suspension according to the invention unstressed.
FIG. 2 shows an elastic suspension according to the invention, under horizontal stress.
An elastic suspension 1 consists of a base plate 3 with a retaining clip 2 that is attached to the base plate 3. Base plate 3 and retaining clip 2 enclose a section that is, in the shown example, essentially rectangular or trapeze-shaped, and in whose symmetry plane a receptacle case 5 is positioned in a swinging manner by way of links 4 of a rubber-elastic material that are connected to the base plate 3 or the retaining clip 2. The receptacle case 5 is used to connect a dynamically stressed function part. Base plate 3, retaining clip 2, and receptacle case 5 consist of metal. To protect against corrosion, they may be coated with the same material that is used to make the links 4.
According to the invention, the retaining clip is made from elastic metal band material, e.g. spring steel band, so that it absorbs an essential part of the displacement path of the receptacle case 5 during dynamic stressing.
FIG. 1 shows unstressed suspension 1 with symmetric position of the receptacle case 5 with equal lateral distances b to the retaining clip 2. FIG. 2 in contrast shows the suspension with horizontal displacement a of the receptacle case 2, which causes both the elastic retaining clip 2 and the rubber elastic links 4 to be displaced or deformed.
The left, lateral distance d1 of receptacle case 5 to the retaining clip 2 is greater (d1>b-a), and the right, lateral distance d2 is smaller (d2<b+a) than would be the case with a suspension 1 with rigid retaining clip 2. The stress on the links 4 is reduced by this difference.

Claims (3)

We claim:
1. An elastic suspension apparatus for suspending dynamically stressed function parts, comprising a base plate, a flexible retaining clip attached to the base plate, a receptacle case movably positioned within a section formed by the base plate and the retaining clip, plural short-length links for attaching the receptacle case to the retaining clip, the links being formed of rubber-elastic material for imparting a swinging movement, wherein the retaining clip comprises elastic metal and material having an elasticity and starting geometry similar to an elasticity and starting geometry of the links for allowing a level deformation of the retaining clip and for absorbing stresses of the dynamically stressed function parts, wherein the elasticity and starting geometry of the retaining clip and of the rubber-elastic links is such that a swinging path in a same plane and at any angle to the base plate, is partially absorbed by a level deformation of the retaining clip.
2. The apparatus of claim 1, wherein the elasticity and starting geometry of the retaining clip and the links is such that up to 90% of a swinging path of the receptacle case parallel to the base plate is absorbed by a level deformation of the retaining clip.
3. The apparatus of claim 2, wherein between 50% and 70% of the swinging path of the receptacle case parallel to the base plate is absorbed by the level deformation of the retaining clip.
US08/254,436 1992-04-04 1994-06-06 Elastic suspension for attaching dynamically stressed function parts Expired - Lifetime US5435532A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US08/254,436 US5435532A (en) 1992-04-04 1994-06-06 Elastic suspension for attaching dynamically stressed function parts

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE4211397.0 1992-04-04
DE4211397A DE4211397C1 (en) 1992-04-04 1992-04-04 Elastic suspension for fastening dynamically stressed functional parts
US4198893A 1993-04-02 1993-04-02
US08/254,436 US5435532A (en) 1992-04-04 1994-06-06 Elastic suspension for attaching dynamically stressed function parts

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US4198893A Continuation 1992-04-04 1993-04-02

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US5435532A true US5435532A (en) 1995-07-25

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US (1) US5435532A (en)
EP (1) EP0564837B1 (en)
AT (1) ATE128080T1 (en)
DE (3) DE9218644U1 (en)
DK (1) DK0564837T3 (en)
ES (1) ES2078769T3 (en)
GR (1) GR3018023T3 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5575461A (en) * 1993-10-02 1996-11-19 Saar-Gummiwerk Gmbh Elastic suspension for attaching dynamically stressed performance parts
EP1030095A2 (en) * 1999-02-15 2000-08-23 WOCO Franz-Josef Wolf &amp; Co. Elastic device for the suspension of vibrating structures
US6196531B1 (en) * 1998-02-19 2001-03-06 Honda Giken Kogyo Kabushiki Kaisha Compression spring formed of an elastic body
US20060213422A1 (en) * 2005-03-06 2006-09-28 Wegu Gmbh & Do. Kg Elastic loop for suspending the exhaust system of a motor vehicle
US20080053737A1 (en) * 2006-08-29 2008-03-06 The Pullman Company Exhaust isolator
US20160146282A1 (en) * 2013-01-18 2016-05-26 Thales Suspension element for the mechanical attachment of a load suspended within a mount
GB2561897A (en) * 2017-04-28 2018-10-31 Jaguar Land Rover Ltd Suspension bush

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DE19500191C1 (en) * 1995-01-05 1996-03-28 Draebing Kg Wegu Elastic bearing for suspension of dynamically stressed part
DE19500192C1 (en) * 1995-01-05 1996-03-28 Draebing Kg Wegu Elastic bearing for suspension of dynamically stressed part
DE19740663A1 (en) * 1997-09-16 1999-03-25 Diehl Remscheid Gmbh & Co Exhaust system suspension
DE19741462C1 (en) * 1997-09-19 1999-05-12 Draebing Kg Wegu Elastic mounting
DE19748824B4 (en) * 1997-11-05 2004-07-01 Wegu Gummi- Und Kunststoffwerke Gmbh & Co. Kg Elastic self-aligning bearing, in particular for suspending an exhaust system on a vehicle floor
DE19831114C2 (en) * 1998-07-11 2001-01-11 Draebing Kg Wegu Elastic self-aligning bearing, in particular for suspending an exhaust system on a vehicle floor
DE19861156C2 (en) * 1998-07-11 2002-03-14 Draebing Kg Wegu Elastic pendulum bearing with swivel bearing bushes
DE19906548C1 (en) * 1999-02-17 2000-05-04 Draebing Kg Wegu Elastic bearing for suspension of e.g. exhaust system of motor vehicles has formed body with loop of spring steel
US6419214B2 (en) * 1999-09-27 2002-07-16 Uniroyal Chamical Company, Inc. Non-linear spring rate sway bar bushing
EP1116621A1 (en) 2000-01-12 2001-07-18 WEGU Gummi- und Kunststoffwerke GmbH &amp; Co. KG Elastic bearing, in particular for the attachment of an exhaust unit to a vehicle floor
DE10211955B4 (en) * 2002-03-18 2004-08-12 Wegu Gummi- Und Kunststoffwerke Gmbh & Co. Kg Fixed bearing for the suspension of a dynamically stressed functional part
DE10229087B4 (en) * 2002-06-28 2004-08-05 Wegu Gummi- Und Kunststoffwerke Gmbh & Co. Kg Elastic bearing for the suspension of a dynamically stressed functional part, with a swinging, rigid frame
DE102004042611B3 (en) * 2004-09-03 2006-02-02 Sg Technologies Gmbh Exhaust suspension device, comprising metal frame and elastic inner area with integrated sleeves
DE102005033488B4 (en) * 2005-07-19 2014-06-18 Wegu Gmbh & Co. Kg Fixed bearing with pendulum properties
JP5158182B2 (en) * 2010-11-24 2013-03-06 トヨタ自動車株式会社 Exhaust system
DE102017222668A1 (en) * 2017-12-13 2019-06-13 Robert Bosch Gmbh holder

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US3292887A (en) * 1965-10-05 1966-12-20 Gen Motors Corp Exhaust system hanger
US4086977A (en) * 1975-09-23 1978-05-02 Bayerische Motoren Werke Aktiengesellschaft Suspension installation for an exhaust gas system
US4380324A (en) * 1980-09-12 1983-04-19 Ford Motor Company Support member for an exhaust pipe of a motor vehicle
US4494722A (en) * 1981-10-09 1985-01-22 Nissan Motor Company, Limited Exhaust unit support device
US4660797A (en) * 1984-12-13 1987-04-28 Wegu Gummi- Und Kunststoffwerlee Walter Drabing Mount for an exhaust system of a motor vehicle
US4727957A (en) * 1985-12-25 1988-03-01 Bridgestone Corporation Rubber vibration isolator for muffler
US4893595A (en) * 1987-07-25 1990-01-16 General Motors Corporation Damping block designed in particular for mounting an engine in a motor vehicle
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US4817909A (en) * 1987-12-07 1989-04-04 Gencorp Inc. Elastomeric hanger structure
US5102107A (en) * 1988-01-15 1992-04-07 Hutchinson Resilient supports for shock absorbing systems
US5050837A (en) * 1989-08-01 1991-09-24 Tokai Rubber Industries, Ld. Muffler holding member
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US5271595A (en) * 1991-09-02 1993-12-21 Hutchinson Resilient support device having a non-linear elastic characteristic

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5575461A (en) * 1993-10-02 1996-11-19 Saar-Gummiwerk Gmbh Elastic suspension for attaching dynamically stressed performance parts
US6196531B1 (en) * 1998-02-19 2001-03-06 Honda Giken Kogyo Kabushiki Kaisha Compression spring formed of an elastic body
CN1101902C (en) * 1998-02-19 2003-02-19 本田技研工业株式会社 Elastic compressive spring
EP1030095A2 (en) * 1999-02-15 2000-08-23 WOCO Franz-Josef Wolf &amp; Co. Elastic device for the suspension of vibrating structures
EP1030095A3 (en) * 1999-02-15 2001-09-26 WOCO Franz-Josef Wolf &amp; Co. Elastic device for the suspension of vibrating structures
US20060213422A1 (en) * 2005-03-06 2006-09-28 Wegu Gmbh & Do. Kg Elastic loop for suspending the exhaust system of a motor vehicle
US7575216B2 (en) 2005-06-03 2009-08-18 Wegu Gmbh & Co. Kg Elastic loop for suspending the exhaust system of a motor vehicle
US20080053737A1 (en) * 2006-08-29 2008-03-06 The Pullman Company Exhaust isolator
US20160146282A1 (en) * 2013-01-18 2016-05-26 Thales Suspension element for the mechanical attachment of a load suspended within a mount
US10337578B2 (en) * 2013-01-18 2019-07-02 Thales Suspension element for the mechanical attachment of a load suspended within a mount
GB2561897A (en) * 2017-04-28 2018-10-31 Jaguar Land Rover Ltd Suspension bush

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GR3018023T3 (en) 1996-02-29
DE59300612D1 (en) 1995-10-26
ATE128080T1 (en) 1995-10-15
DE4211397C1 (en) 1993-09-30
ES2078769T3 (en) 1995-12-16
DE9218644U1 (en) 1994-11-03
EP0564837A2 (en) 1993-10-13
DK0564837T3 (en) 1996-02-05
EP0564837B1 (en) 1995-09-20
EP0564837A3 (en) 1994-03-09

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